Hi I’m pretty sure you can find multiple posts from me spelling it any of a half dozen ways ….. :)
Bob > On Oct 27, 2020, at 9:29 PM, jimlux <[email protected]> wrote: > > On 10/27/20 6:16 PM, Tom Van Baak wrote: >> Alberto, >> Thanks for asking. The correct spelling is Allan variance or Allan >> deviation, named after David Allan, of NBS (NIST). Yes, on rare occasions it >> is misspelled Allen, as in the hex key wrench. Note it's spelled correctly >> in the Subject line of this thread. I'm not aware of national explanations >> for the misspelling; it could simply be that allen is more popular a name >> than allan and a spell checker allows either one. >> The ADEV statistic itself is spelled Allan because that's his name: Dr. >> David W. Allan. Similarly, the hex wrench is spelled Allen because of Mr. >> William G. Allen. >> More fun: When you google word search it displays a hit count: >> "allan deviation" About 84,300 results (0.46 seconds) >> "allen deviation" About 2,460 results (0.40 seconds) >> "allan variance" About 85,400 results (0.41 seconds) >> "allen variance" About 21,300 results (0.37 seconds) >> "allen wrench" About 4,820,000 results (0.52 seconds) >> "allan" About 213,000,000 results (0.77 seconds) >> "allen" About 1,190,000,000 results (0.87 seconds) >> You can see that the word allen is 5x more popular than allan. That alone >> may explain the occasion misspelling of ADEV. Also, apparently, Allen wrench >> tools are 50x more popular than Allan deviation tools ;-) > > I'm still agitating for alien deviation - Microsoft offers it as a > suggestion, but not Allan, so it must be true. > > > > <Screen Shot 2020-10-27 at 6.27.37 > PM.png>_______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
